2 * (C) Copyright 2011 Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
4 * Based on microblaze implementation by:
5 * (C) Copyright 2007 Michal Simek
6 * (C) Copyright 2004 Atmark Techno, Inc.
8 * Michal SIMEK <monstr@monstr.eu>
9 * Yasushi SHOJI <yashi@atmark-techno.com>
11 * SPDX-License-Identifier: GPL-2.0+
17 #include <u-boot/zlib.h>
18 #include <asm/byteorder.h>
20 DECLARE_GLOBAL_DATA_PTR;
22 int do_bootm_linux(int flag, int argc, char * const argv[],
23 bootm_headers_t *images)
25 void (*kernel) (unsigned int);
26 ulong rd_data_start, rd_data_end;
29 * allow the PREP bootm subcommand, it is required for bootm to work
31 if (flag & BOOTM_STATE_OS_PREP)
34 if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
39 char *of_flat_tree = NULL;
40 #if defined(CONFIG_OF_LIBFDT)
41 /* did generic code already find a device tree? */
43 of_flat_tree = images->ft_addr;
46 kernel = (void (*)(unsigned int))images->ep;
49 ret = boot_get_ramdisk(argc, argv, images, IH_ARCH_OPENRISC,
50 &rd_data_start, &rd_data_end);
54 show_boot_progress(15);
56 if (!of_flat_tree && argc > 1)
57 of_flat_tree = (char *)simple_strtoul(argv[1], NULL, 16);
59 printf("## Transferring control to Linux (at address 0x%08lx) " \
60 "ramdisk 0x%08lx, FDT 0x%08lx...\n",
61 (ulong) kernel, rd_data_start, (ulong) of_flat_tree);
63 if (dcache_status() || icache_status())
64 flush_cache((ulong)kernel, max(checkdcache(), checkicache()));
67 * Linux Kernel Parameters (passing device tree):
68 * r3: pointer to the fdt, followed by the board info data
70 kernel((unsigned int) of_flat_tree);